The CSS attribute selector matches elements based on the presence or value of a given attribute.
/* <a> elements with a title attribute */ a[title] { color: purple; } /* <a> elements with an href matching "https://example.org" */ a[href="https://example.org"] { color: green; } /* <a> elements with an href containing "example" */ a[href*="example"] { font-size: 2em; } /* <a> elements with an href ending ".org" */ a[href$=".org"] { font-style: italic; } /* <a> elements whose class attribute contains the word "logo" */ a[class~="logo"] { padding: 2px; }
Syntax
[attr]
- Represents elements with an attribute name of attr.
[attr=value]
- Represents elements with an attribute name of attr whose value is exactly value.
[attr~=value]
- Represents elements with an attribute name of attr whose value is a whitespace-separated list of words, one of which is exactly value.
[attr|=value]
- Represents elements with an attribute name of attr whose value can be exactly value or can begin with value immediately followed by a hyphen,
-
(U+002D). It is often used for language subcode matches. [attr^=value]
- Represents elements with an attribute name of attr whose value is prefixed (preceded) by value.
[attr$=value]
- Represents elements with an attribute name of attr whose value is suffixed (followed) by value.
[attr*=value]
- Represents elements with an attribute name of attr whose value contains at least one occurrence of value within the string.
[attr operator value i]
- Adding an
i
(orI
) before the closing bracket causes the value to be compared case-insensitively (for characters within the ASCII range). [attr operator value s]
- Adding an
s
(orS
) before the closing bracket causes the value to be compared case-sensitively (for characters within the ASCII range).
Examples
Links
CSS
a { color: blue; } /* Internal links, beginning with "#" */ a[href^="#"] { background-color: gold; } /* Links with "example" anywhere in the URL */ a[href*="example"] { background-color: silver; } /* Links with "insensitive" anywhere in the URL, regardless of capitalization */ a[href*="insensitive" i] { color: cyan; } /* Links with "cAsE" anywhere in the URL, with matching capitalization */ a[href*="cAsE" s] { color: pink; } /* Links that end in ".org" */ a[href$=".org"] { color: red; } /* Links that start with "https" and end in ".org" */ a[href^="https"][href$=".org"] { color: green; }
HTML
<ul> <li><a href="#internal">Internal link</a></li> <li><a href="http://example.com">Example link</a></li> <li><a href="#InSensitive">Insensitive internal link</a></li> <li><a href="http://example.org">Example org link</a></li> <li><a href="https://example.org">Example https org link</a></li> </ul>
Result
Languages
CSS
/* All divs with a `lang` attribute are bold. */
div[lang] {
font-weight: bold;
}
/* All divs without a `lang` attribute are italicized. */
div:not([lang]) {
font-style: italic;
}
/* All divs in US English are blue. */
div[lang~="en-us"] {
color: blue;
}
/* All divs in Portuguese are green. */
div[lang="pt"] {
color: green;
}
/* All divs in Chinese are red, whether
simplified (zh-CN) or traditional (zh-TW). */
div[lang|="zh"] {
color: red;
}
/* All divs with a Traditional Chinese
`data-lang` are purple. */
/* Note: You could also use hyphenated attributes
without double quotes */
div[data-lang="zh-TW"] {
color: purple;
}
HTML
<div lang="en-us en-gb en-au en-nz">Hello World!</div> <div lang="pt">OlΓ‘ Mundo!</div> <div lang="zh-CN">δΈηζ¨ε₯½οΌ</div> <div lang="zh-TW">δΈηζ¨ε₯½οΌ</div> <div data-lang="zh-TW">δΈηζ¨ε₯½οΌ</div>
Result
HTML ordered lists
The HTML specification requires the type
attribute to be matched case-insensitively due to it primarily being used in the <input>
element, trying to use attribute selectors to with the type
attribute of an ordered list doesn't work without the case-sensitive modifier.
CSS
/* List types require the case sensitive flag due to a quirk in how HTML treats the type attribute. */ ol[type="a"] { list-style-type: lower-alpha; background: red; } ol[type="a" s] { list-style-type: lower-alpha; background: lime; } ol[type="A" s] { list-style-type: upper-alpha; background: lime; }
HTML
<ol type="A"> <li>Example list</li> </ol>
Result
Specifications
Specification | Status | Comment |
---|---|---|
Selectors Level 4 The definition of 'attribute selectors' in that specification. |
Working Draft | Adds modifier for ASCII case-sensitive and case-insensitive attribute value selection. |
Selectors Level 3 The definition of 'attribute selectors' in that specification. |
Recommendation | |
CSS Level 2 (Revision 1) The definition of 'attribute selectors' in that specification. |
Recommendation | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Attribute selector ([attr=value] ) | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 1 | IE Full support 7 | Opera Full support 9 | Safari Full support 3 | WebView Android Full support β€37 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android Full support 14 | Safari iOS Full support 1 | Samsung Internet Android Full support 1.0 |
Case-insensitive modifier (i ) | Chrome Full support 49 | Edge Full support 79 | Firefox Full support 47 | IE No support No | Opera Full support 36 | Safari Full support 9 | WebView Android Full support 49 | Chrome Android Full support 49 | Firefox Android Full support 47 | Opera Android Full support 36 | Safari iOS Full support 9 | Samsung Internet Android Full support 5.0 |
Case-sensitive modifier (s ) | Chrome
No support
No
| Edge
No support
No
| Firefox Full support 66 | IE No support No | Opera
No support
No
| Safari No support No | WebView Android
No support
No
| Chrome Android
No support
No
| Firefox Android Full support 66 | Opera Android
No support
No
| Safari iOS No support No | Samsung Internet Android
No support
No
|
Legend
- Full support
- Full support
- No support
- No support
- See implementation notes.
- See implementation notes.
See also
attr()
- Selecting a single element:
Document.querySelector()
,DocumentFragment.querySelector()
, orElement.querySelector()
- Selecting all matching elements:
Document.querySelectorAll()
,DocumentFragment.querySelectorAll()
, orElement.querySelectorAll()
- The above methods are all implemented based on the
ParentNode
mixin; seeParentNode.querySelector()
andParentNode.querySelectorAll()